Success and error message does'nt show - php

Question

Hello i am new to laravel i created page to added single post but for some reason success and errors messages doesn't appear at all not matter i successfully insert a new post or submit empty form although some fields are required .. in my controller i am using this method postCreatePost
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Post;
use App\Catgory;
class PostController extends Controller {
public function getBlogIndex() {
return view ('frontend.blog.index');
}
public function getSignlePost($post_id, $end = 'frontend') {
return view ($end, '.blog.single');
}
public function getCreatePost() {
return view('admin.blog.create_post');
}
public function postCreatePost(Request $request) {
$this->validate($request, [
'title' => 'required|max:120|unique:posts',
'author' => 'required|max:80',
'body' => 'required'
]);
$post = new Post();
$post->title = $request['title'];
$post->author = $request['author'];
$post->body = $request['body'];
$post->save();
//Attaching categories
return redirect()->route('admin.index')->with(['success','Post sucessfully created!']);
}
}
This is my view
#extends('layouts.admin-master')
#section('styles')
<link rel="stylesheet" href="{{ URL::secure('src/css/form.css') }}" type="text/css" />
#endsection
#section('content')
<div class="container">
#section('styles')
<link rel="stylesheet" href="{{ URL::to('src/css/common.css') }}" type="text/css" />
#append
#if(Session::has('fail'))
<section class="info-box fail">
{{ Session::get('fail') }}
</section>
#endif
{{ var_dump(Session::get('success')) }}
#if(Session::has('success'))
<section class="info-box success">
{{ Session::get('success') }}
</section>
#endif
#if(count($errors) > 0)
<section class="info-box fail">
<ul>
#foreach($errors->all() as $error)
<li>{{ $error }}</li>
#endforeach
</ul>
</section>
#endif
<form action="{{ route('admin.blog.post.create') }}" method="post">
<div class="input-group">
<label for="title">Title</label>
<input type="text" name="title" id="title" {{ $errors->has('title') ? 'claass=has-error' : '' }} />
</div>
<div class="input-group">
<label for="author">Author</label>
<input type="text" name="author" id="author" {{ $errors->has('author') ? 'claass=has-error' : '' }} />
</div>
<div class="input-group">
<label for="category_select">Add Categories</label>
<select name="category_select" id="category_select">
<!-- Foreach loop to output categories -->
<option value="Dummy Category ID">Dummy Category</option>
</select>
<button type="button" class="btn">Add Category</button>
<div class="added-categories">
<ul></ul>
</div>
</div>
<input type="hidden" name="categories" id="categories">
<div class="input-group">
<label for="body">Body</label>
<textarea name="body" id="body" cols="30" rows="10" {{ $errors->has('body') ? 'claass=has-error' : '' }}></textarea>
</div>
<button type="submit" class="btn">Create Post</button>
<input type="hidden" name="_token" value="{{ Session::token() }}">
</form>
</div>
#endsection
#section('scripts')
<script type="text/javascript" src="{{ URL::secure('src/js/posts.js') }}"></script>
#endsection
My routes inside web middleware
Route::group(['middleware' => ['web']], function () {
Route::get('/about', function() {
return view('frontend.other.about');
})->name('about');
Route::group([
'prefix' => '/admin'
], function() {
Route::get('/', [
'uses' => 'AdminController#getIndex',
'as' => 'admin.index'
]);
Route::get('/blog/posts/create', [
'uses' => 'PostController#getCreatePost',
'as' => 'admin.blog.create_post'
]);
Route::post('/blog/post/create', [
'uses' => 'PostController#postCreatePost',
'as' => 'admin.blog.post.create'
]);
});
});
And the model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
public function categories() {
return $this->belongsToMany('App\Category', 'posts_categories');
}
}

Answer 1

You're using wrong syntax. Try this one:
return redirect()->route('admin.index')->with('success','Post sucessfully created!');